Cooling device of liquid cooling radiator and liquid cooling radiator

Abstract

The cooling device comprises a shell assembly, a separation plate and a bottom plate, the shell assembly is provided with a water inlet channel and a water outlet channel, the internal space of the shell assembly is divided into an upper first cavity and a lower second cavity by the separation plate, a hollow cavity with an opening in the bottom is formed in the first cavity, and the bottom plate is arranged in the hollow cavity. A bulge structure matched with the hollow cavity is arranged on the isolation plate, and an annular flow channel is formed around the bulge structure. The protruding structure is provided with a first through hole communicating with the hollow cavity and the second cavity, and the annular flow channel area is provided with a second through hole communicating with the first cavity and the second cavity. The water outlet channel is connected with the hollow cavity through a pipeline, and the water inlet channel is communicated with the annular flow channel through a water inlet groove. According to the structural design, the flowing path of cooling liquid is optimized, mutual contact of cold flow and hot flow is avoided, the contact time and area with the heat dissipation surface are increased, and local hot spots are avoided. The overall design is simple and efficient, and the heat dissipation requirement of a high-performance CPU is met.

Description

Technical Field

[0001] The utility model relates to the technical field of chip cooling, and particularly relates to a cooling device for a liquid-cooled radiator and a liquid-cooled radiator. Background Art

[0002] In modern computer systems, the continuous improvement of processor performance has brought higher heat generation requirements, and an efficient cooling system is crucial for maintaining the stable operation of the processor. The traditional air-cooling method can no longer meet the cooling requirements of high-performance processors. Therefore, the liquid-cooling technology has gradually become the mainstream due to its higher cooling efficiency. However, most of the existing liquid-cooled radiators on the market adopt a single-chamber design, which has significant limitations and directly affects the cooling effect and system performance.

[0003] In the design of single-chamber liquid-cooled radiators, due to the single flow channel design, the contact time and area between the coolant and the surface of the processor heat source are limited, and the heat cannot be fully absorbed, resulting in a reduction in the overall cooling efficiency. In addition, in single-chamber liquid-cooled radiators, the inlet and outlet paths of the coolant are prone to interference with each other, causing cold and hot mixing, further reducing the cooling effect and affecting the cooling efficiency.

[0004] To address these problems, a new type of liquid-cooled radiator design is urgently needed. By optimizing the flow path of the coolant, increasing the contact time and area between the coolant and the processor surface, improving the heat exchange efficiency, and at the same time enhancing the maintainability and adaptability of the device, the deficiencies of the existing single-chamber liquid-cooled radiators can be overcome. Summary of the Utility Model

[0005] The utility model provides a cooling device for a liquid-cooled radiator and a liquid-cooled radiator, aiming to solve the problems of single flow channel design and poor cooling efficiency in the existing liquid-cooled radiators.

[0006] To achieve the above object, the utility model provides the following technical solutions. A cooling device for a liquid-cooled radiator includes a housing assembly, a partition plate disposed inside the housing assembly, and a bottom plate connected to the bottom of the housing assembly.

[0007] The housing assembly is provided with an inlet channel and an outlet channel communicating with an external pipeline.

[0008] The periphery of the partition plate abuts against the housing assembly. The partition plate divides the internal space of the housing assembly into a first chamber in the upper part and a second chamber in the lower part. A hollow chamber with an opening at the bottom is formed inside the first chamber. A convex structure matching the shape of the hollow chamber is provided on the side of the partition plate close to the first chamber. An annular flow channel is formed along the periphery of the convex structure on the partition plate.

[0009] The convex structure is provided with a first through hole communicating the hollow chamber and the second chamber, and the annular flow channel region is provided with a plurality of second through holes communicating the first chamber and the second chamber;

[0010] A pipeline is provided for communicating between the water outlet channel and the hollow chamber, and a water inlet groove is provided for communicating between the water inlet channel and the annular flow channel;

[0011] The bottom plate is provided with a fin array, and the fin array is composed of a plurality of fins perpendicular to the bottom plate.

[0012] Furthermore, the housing assembly includes an upper housing and a lower housing detachably connected thereto. The partition plate is integrally formed with the lower housing, and the water inlet channel and the water outlet channel are provided on the upper housing.

[0013] Furthermore, the first through hole and the second through hole are in a conical structure. The aperture of the first through hole gradually increases axially from the end close to the first chamber to the end close to the second chamber, and the aperture of the second through hole gradually decreases axially from the end close to the first chamber to the end close to the second chamber.

[0014] Furthermore, a sealing device is provided on the convex structure, and the sealing device is detachably connected or integrally formed with the convex structure.

[0015] Furthermore, 2 - 6 second through holes are evenly arranged circumferentially in the annular flow channel region.

[0016] Furthermore, a water distribution plate and a sealing plate are sequentially arranged between the bottom plate and the partition plate. The bottom of the water distribution plate abuts against the fin array on the bottom plate, the sealing plate covers the water distribution plate, the water distribution plate is provided with at least one third through hole, the sealing plate is provided with at least one fourth through hole, and the third through hole and the fourth through hole communicate with each other.

[0017] Furthermore, the lower surface of the sealing plate has a recessed structure integrally formed, the water distribution plate is placed inside the recessed structure, and the shape of the third through hole on the water distribution plate corresponds to the shape of the fourth through hole on the sealing plate.

[0018] Furthermore, it further includes a stator assembly and a rotor assembly. A receiving cavity is provided on the upper surface of the housing assembly, the stator assembly is fixedly installed in the receiving cavity, the rotor assembly includes a rotatable part and an impeller part detachably connected, and the impeller part is arranged in the hollow chamber.

[0019] Furthermore, the impeller part includes a disc - shaped main body structure and a plurality of spiral blades arranged thereon. The blades bend and extend from the central position of the impeller part to the periphery, and through holes are provided between adjacent blades.

[0020] The present utility model also provides a liquid - cooled radiator, including a cooling device of the liquid - cooled radiator, a heat dissipation row, and a connecting pipe connecting the cooling device and the heat dissipation row of the liquid - cooled radiator.

[0021] Compared with the prior art, a cooling device of a liquid-cooled radiator and the liquid-cooled radiator provided by the present utility model mainly improve the heat dissipation efficiency by optimizing the flow path design. The device utilizes the connection between the water inlet channel and the annular flow channel, as well as the connection between the water outlet channel and the hollow chamber, effectively avoiding the mutual contact of cold and hot fluids, thereby reducing heat energy loss. In addition, by reasonably designing the channel structure and the flow path layout, the uniform distribution of the coolant and sufficient heat exchange are ensured, further improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 is an exploded structural schematic diagram of the cooling device of the present utility model;

[0024] Figure 2 is a connection structural schematic diagram of the housing assembly and the isolation plate of the present utility model;

[0025] Figure 3 is a three-dimensional view of the isolation plate of the present utility model;

[0026] Figure 4 is a connection structural schematic diagram of the upper housing and the impeller part of the present utility model;

[0027] Figure 5 is a connection structural schematic diagram of the bottom plate and the sealing plate of the present utility model;

[0028] Figure 6 is a cross-sectional view of the cooling device of the present utility model;

[0029] Figure 7 is a three-dimensional structural schematic diagram of the liquid-cooled radiator of the present utility model.

[0030] In the figure: 1. Housing assembly; 2. Heat dissipation row; 3. Connection pipe; 4. Stator assembly; 5. Rotor assembly; 6. Fan; 11. Upper housing; 12. Lower housing; 13. Isolation plate; 14. Water inlet channel; 15. Water outlet channel; 16. Dividing plate; 17. Sealing plate; 18. Bottom plate; 51. Rotating part; 52. Impeller part; 111. First cavity; 112. Second cavity; 131. First through hole; 132. Second through hole; 133. Protrusion structure; 134. Annular flow channel; 161. Third through hole; 171. Fourth through hole; 181. Fin array. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0032] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed connection", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected or indirectly connected through an intermediate medium, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly defined and limited, the first feature may be in direct contact with the second feature "above" or "below", or the first and second features may be indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0034] The following further elaborates and explains the solution of the present utility model in combination with specific embodiments and the drawings. Specific Embodiment

[0036] Please refer to Figures 1 to 6, a cooling device for a liquid-cooled radiator provided by the present utility model mainly includes a housing assembly 1, a partition plate 13 disposed within the housing assembly 1, and a bottom plate 18 connected to the bottom of the housing assembly 1. The housing assembly 1 is provided with a water inlet channel 14 and a water outlet channel 15 that communicate with an external pipeline. These channels are used for the input and output of the coolant to ensure the effective connection between the cooling device of the liquid-cooled radiator and the external circulation system. The peripheral side of the partition plate 13 abuts against the housing assembly 1, dividing the internal space of the housing assembly 1 into a first cavity 111 in the upper part and a second cavity 112 in the lower part. A hollow chamber 113 with an opening at the bottom is formed inside the first cavity 111. The shape of the hollow chamber 113 can be circular, square, or other irregular shapes, and can be specifically selected according to actual requirements and manufacturing processes. In this embodiment, the hollow chamber 113 adopts a circular design. The circular structure can reduce the resistance of the coolant during flow and promote smoother liquid circulation. A convex structure 133 matching the shape of the hollow chamber 113 is provided on the side of the partition plate 13 close to the first cavity 111. The convex structure 133 and the hollow chamber 113 also adopt a circular structure to ensure a tight fit between the two. The partition plate 13 forms an annular flow channel 134 along the peripheral side of the convex structure 133. The design of the annular flow channel 134 helps to guide the uniform distribution of the coolant.

[0037] The convex structure 133 is provided with a first through hole 131 that communicates the hollow chamber 113 and the second cavity 112. Several second through holes 132 that communicate the first cavity 111 and the second cavity 112 are provided in the area of the annular flow channel 134.

[0038] A pipeline is provided for connection between the water outlet channel 15 and the hollow chamber 113, and the coolant flows through the hollow chamber 113 towards the water outlet channel 15. A water inlet groove is provided for connection between the water inlet channel 14 and the annular flow channel 134. One end of the water inlet groove is connected to the water inlet channel 14, and the other end is connected to the outer wall of the hollow chamber 113. This design of separating the inlet and outlet effectively prevents the contact between the hot and cold flows and improves the heat dissipation efficiency.

[0039] The bottom plate 18 is provided with a fin array 181, and the fin array 181 is composed of several fins perpendicular to the bottom plate 18.

[0040] During operation, the coolant enters from the water inlet channel 14, enters the second cavity 112 through the annular flow channel 134 and the second through holes 132, and makes full contact with the fin array 181 on the bottom plate 18 for heat exchange. Then, the coolant rises to the hollow chamber 113 through the first through hole 131 and finally is discharged from the water outlet channel 15. This flow path design ensures the full contact between the coolant and the heat dissipation surface, and at the same time avoids the direct contact between the hot and cold flows, thereby realizing an efficient heat exchange process.

[0041] In an embodiment of the present utility model, the housing assembly 1 adopts a split design, including an upper housing 11 and a lower housing 12 that are detachably connected. A sealing ring can also be provided on the contact surface between the upper housing 11 and the lower housing 12 to enhance the overall sealing effect and effectively prevent coolant leakage. The isolation plate 13 is integrally formed with the lower housing 12, which simplifies manufacturing and has higher structural strength. The water inlet channel 14 and the water outlet channel 15 are provided in the upper housing 11. The water inlet channel 14 and the water outlet channel 15 are integrally formed with the upper housing 11, or can also be designed in a detachable joint connection manner. The split structural design facilitates daily maintenance and cleaning, and the pipeline can be inspected and cleaned without disassembling the entire device.

[0042] In an embodiment of the present utility model, the first through hole 131 and the second through hole 132 adopt a conical structure design. Specifically, the aperture of the first through hole 131 gradually increases axially from the end close to the first cavity 111 to the end close to the second cavity 112; the aperture of the second through hole 132 gradually decreases axially from the end close to the first cavity 111 to the end close to the second cavity 112. By adjusting the taper and size of the first through hole and the second through hole, precise control of the coolant flow rate can be achieved. At the same time, it can also effectively buffer the hydraulic change in the flow channel and avoid damage to the system caused by pressure peaks.

[0043] In an embodiment of the present utility model, a sealing device is provided on the protruding structure 133. The protruding structure 133 is detachably connected or integrally formed with the sealing device. The sealing device can be an independent component, such as a rubber ring or a sealing gasket, and is connected to the protruding structure 133 by means of snap-fastening, pressing, etc. The sealing device and the protruding structure 133 can also be integrally injection-molded during the manufacturing process. The function of the sealing device is to ensure effective sealing between the hollow chamber 113 and the first cavity 111 and prevent coolant leakage.

[0044] In an embodiment of the present utility model, 4 second through holes are evenly arranged at intervals of 90 degrees circumferentially in the annular flow channel area. It is easy for those skilled in the art to think that the number, size, and distribution method of the second through holes can be adjusted according to actual needs. For example, 2 second through holes can be evenly arranged at intervals of 180 degrees circumferentially, or 6 second through holes can be evenly arranged at intervals of 60 degrees circumferentially. The shape of the through hole can also be changed according to needs, such as circular, fan-shaped, square, or other irregular shapes, etc., to achieve uniform distribution of the coolant and optimize the flow path of the coolant. Such designs should all belong to simple deformations of this embodiment.

[0045] In an embodiment of the present utility model, a water distribution plate 16 and a sealing plate 17 are further added between the bottom plate 18 and the isolation plate 13, which are arranged in sequence from bottom to top. Specifically, the bottom of the water distribution plate 16 abuts against the fin array 181 on the bottom plate 18, and the sealing plate 17 covers and seals above the water distribution plate 16. At least one third through hole 161 is provided on the water distribution plate 16, and at least one fourth through hole 171 is correspondingly provided on the sealing plate 17. The third through hole 161 and the fourth through hole 171 are interconnected to form a directional flow path for the coolant. The layered design of the water distribution plate 16 and the sealing plate 17 realizes the precise control of the coolant flow, ensuring that the liquid evenly flows through each part of the fin array 181 and avoiding local overheating. The number, size and distribution of the third through hole 161 and the fourth through hole 171 can be adjusted according to the actual heat dissipation requirements.

[0046] In an embodiment of the present utility model, the design of the sealing plate 17 is further optimized, and its lower surface has an integrally formed concave structure. The function of this concave structure is to accommodate the water distribution plate 16, that is, the water distribution plate 16 is built into the concave structure. The precise fit between the concave structure and the water distribution plate 16 improves the structural stability of the entire assembly and reduces the possible shaking or displacement during use. The shapes of the third through hole 161 on the water distribution plate 16 and the fourth through hole 171 on the sealing plate 17 are correspondingly the same. The through hole design with the same shape enables the coolant to maintain a stable flow path when flowing through the water distribution plate 16 and the sealing plate 17, reducing the pressure loss caused by the change of the hole diameter. At the same time, the two through holes with the same shape can also simplify the manufacturing process and facilitate production and processing.

[0047] In an embodiment of the present utility model, the cooling device of the liquid-cooled radiator is increased with a stator assembly 4 and a rotor assembly 5. Specifically, a receiving cavity is provided on the upper surface of the housing assembly 1, and the stator assembly 4 is fixedly installed in the receiving cavity. The rotor assembly 5 includes a rotating part 51 and an impeller part 52 that are detachably connected, wherein the impeller part 52 is arranged in the hollow chamber 113. The stator assembly 4 adopts a waterproof and sealed design, and the rotating part 51 and the impeller part 52 can be connected by snap connection, threaded connection or magnetic connection to adapt to different application scenarios.

[0048] In an embodiment of the present utility model, the structure of the impeller part 52 is further optimized. Specifically, the impeller part 52 includes a disc-shaped main body structure and a plurality of spiral blades arranged thereon. These blades extend in a curved shape from the central position of the impeller part 52 towards the periphery, and through holes are provided between adjacent blades. For the convenience of cleaning and replacing the blades, the spiral blades can be designed to be detachably connected to the disc-shaped main body structure or integrally formed. The size and shape of the through holes can be designed according to actual needs. In this embodiment, an oval through hole design is adopted. This design can reduce the resistance of the blades to the liquid, and at the same time, it can also balance the pressure on both sides of the impeller, helping to reduce the axial thrust of the impeller and extend the service life of the equipment.

[0049] In an embodiment of the present utility model, a liquid-cooled radiator is provided. The liquid-cooled radiator includes the cooling device of the liquid-cooled radiator in any of the above embodiments, a heat dissipation row 2, and a connecting pipe 3 connecting the cooling device of the liquid-cooled radiator and the heat dissipation row 2. A plurality of fans 6 arranged side by side are provided on the heat dissipation row 2, and the pipe 3 is used to connect the cooling device of the liquid-cooled radiator and the heat dissipation row 2 to form a closed liquid-cooling circulation system.

[0050] The cooling device of a liquid-cooled radiator and the liquid-cooled radiator provided by the present utility model are introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea and method of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A cooling device for a liquid-cooled radiator, characterized in that It includes a housing assembly, a partition board placed inside the housing assembly, and a bottom plate connected to the bottom of the housing assembly. The housing assembly is provided with a water inlet channel and a water outlet channel that communicate with an external pipeline. The peripheral side of the partition board abuts against the housing assembly. The partition board divides the internal space of the housing assembly into a first cavity in the upper part and a second cavity in the lower part. A hollow chamber with a bottom opening is formed inside the first cavity. A convex structure matching the shape of the hollow chamber is arranged on the side of the partition board close to the first cavity. An annular flow channel is formed along the peripheral side of the convex structure on the partition board. The convex structure is provided with a first through hole communicating the hollow chamber and the second cavity. Several second through holes communicating the first cavity and the second cavity are arranged in the annular flow channel area. A pipeline is provided for connection between the water outlet channel and the hollow chamber, and a water inlet groove is provided for connection between the water inlet channel and the annular flow channel. The bottom plate is provided with a fin array, and the fin array is composed of several fins perpendicular to the bottom plate.

2. The cooling device of the liquid-cooled radiator according to claim 1, characterized in that, The housing assembly includes an upper housing and a lower housing detachably connected thereto. The partition board is integrally formed with the lower housing. The water inlet channel and the water outlet channel are arranged on the upper housing.

3. The cooling device of the liquid-cooled radiator according to claim 1, characterized in that, The first through hole and the second through hole are in a conical structure. The aperture of the first through hole gradually increases axially from the end close to the first cavity to the end close to the second cavity. The aperture of the second through hole gradually decreases axially from the end close to the first cavity to the end close to the second cavity.

4. The cooling device of the liquid-cooled radiator according to claim 1, characterized in that, A sealing device is arranged on the convex structure, and the sealing device is detachably connected to or integrally formed with the convex structure.

5. The cooling device of the liquid-cooled radiator according to claim 1, characterized in that 2-6 second through holes are uniformly arranged along the circumferential direction in the annular flow channel area.

6. The cooling device of the liquid-cooled radiator according to claim 1, characterized in that, A water distribution board and a sealing board are sequentially arranged between the bottom plate and the partition board. The bottom of the water distribution board abuts against the fin array on the bottom plate. The sealing board covers the water distribution board. At least one third through hole is arranged on the water distribution board, and at least one fourth through hole is arranged on the sealing board. The third through hole and the fourth through hole communicate with each other.

7. The cooling device of the liquid-cooled radiator according to claim 6, characterized in that, The lower surface of the sealing board has a recessed structure integrally formed. The water distribution board is placed inside the recessed structure. The shape of the third through hole on the water distribution board corresponds to the shape of the fourth through hole on the sealing board.

8. The cooling device of the liquid-cooled radiator according to claim 1, characterized in that: It further includes a stator assembly and a rotor assembly. A receiving cavity is arranged on the upper surface of the housing assembly. The stator assembly is fixedly installed in the receiving cavity. The rotor assembly includes a rotatable part and an impeller part detachably connected. The impeller part is arranged inside the hollow chamber.

9. The cooling device of the liquid-cooled radiator according to claim 8, characterized in that, The impeller part includes a disc-shaped main body structure and a plurality of spiral blades arranged thereon. The blades bend and extend from the central position of the impeller part to the periphery. Through holes are arranged between adjacent blades.

10. A liquid-cooled radiator, characterized in that, It includes a cooling device of the liquid cooling radiator according to any one of claims 1-9, a heat dissipation row, and a connecting pipeline connecting the cooling device of the liquid cooling radiator and the heat dissipation row.

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